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1da177e4 LT |
1 | # |
2 | # s390/Makefile | |
3 | # | |
4 | # This file is included by the global makefile so that you can add your own | |
5 | # architecture-specific flags and dependencies. Remember to do have actions | |
6 | # for "archclean" and "archdep" for cleaning up and making dependencies for | |
7 | # this architecture | |
8 | # | |
9 | # This file is subject to the terms and conditions of the GNU General Public | |
10 | # License. See the file "COPYING" in the main directory of this archive | |
11 | # for more details. | |
12 | # | |
13 | # Copyright (C) 1994 by Linus Torvalds | |
14 | # | |
15 | ||
347a8dc3 | 16 | ifndef CONFIG_64BIT |
1da177e4 LT |
17 | LDFLAGS := -m elf_s390 |
18 | CFLAGS += -m31 | |
19 | AFLAGS += -m31 | |
20 | UTS_MACHINE := s390 | |
21 | STACK_SIZE := 8192 | |
d310a35a | 22 | CHECKFLAGS += -D__s390__ |
347a8dc3 | 23 | else |
1da177e4 LT |
24 | LDFLAGS := -m elf64_s390 |
25 | MODFLAGS += -fpic -D__PIC__ | |
26 | CFLAGS += -m64 | |
27 | AFLAGS += -m64 | |
28 | UTS_MACHINE := s390x | |
29 | STACK_SIZE := 16384 | |
d310a35a | 30 | CHECKFLAGS += -D__s390__ -D__s390x__ |
1da177e4 LT |
31 | endif |
32 | ||
33 | cflags-$(CONFIG_MARCH_G5) += $(call cc-option,-march=g5) | |
34 | cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900) | |
35 | cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) | |
36 | ||
37 | # old style option for packed stacks | |
38 | ifeq ($(call cc-option-yn,-mkernel-backchain),y) | |
39 | cflags-$(CONFIG_PACK_STACK) += -mkernel-backchain -D__PACK_STACK | |
40 | aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
41 | cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
42 | aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
43 | ifdef CONFIG_SMALL_STACK | |
44 | STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) | |
45 | endif | |
46 | endif | |
47 | ||
48 | # new style option for packed stacks | |
49 | ifeq ($(call cc-option-yn,-mpacked-stack),y) | |
50 | cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK | |
51 | aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK | |
52 | cflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
53 | aflags-$(CONFIG_SMALL_STACK) += -D__SMALL_STACK | |
54 | ifdef CONFIG_SMALL_STACK | |
55 | STACK_SIZE := $(shell echo $$(($(STACK_SIZE)/2)) ) | |
56 | endif | |
57 | endif | |
58 | ||
59 | ifeq ($(call cc-option-yn,-mstack-size=8192 -mstack-guard=128),y) | |
60 | cflags-$(CONFIG_CHECK_STACK) += -mstack-size=$(STACK_SIZE) | |
61 | cflags-$(CONFIG_CHECK_STACK) += -mstack-guard=$(CONFIG_STACK_GUARD) | |
62 | endif | |
63 | ||
64 | ifeq ($(call cc-option-yn,-mwarn-dynamicstack),y) | |
65 | cflags-$(CONFIG_WARN_STACK) += -mwarn-dynamicstack | |
66 | cflags-$(CONFIG_WARN_STACK) += -mwarn-framesize=$(CONFIG_WARN_STACK_SIZE) | |
67 | endif | |
68 | ||
69 | CFLAGS += -mbackchain -msoft-float $(cflags-y) | |
70 | CFLAGS += $(call cc-option,-finline-limit=10000) | |
71 | CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare | |
72 | AFLAGS += $(aflags-y) | |
73 | ||
74 | OBJCOPYFLAGS := -O binary | |
75 | LDFLAGS_vmlinux := -e start | |
76 | ||
0ad775db | 77 | head-y := arch/$(ARCH)/kernel/head.o arch/$(ARCH)/kernel/init_task.o |
1da177e4 LT |
78 | |
79 | core-y += arch/$(ARCH)/mm/ arch/$(ARCH)/kernel/ arch/$(ARCH)/crypto/ \ | |
80 | arch/$(ARCH)/appldata/ | |
81 | libs-y += arch/$(ARCH)/lib/ | |
82 | drivers-y += drivers/s390/ | |
83 | drivers-$(CONFIG_MATHEMU) += arch/$(ARCH)/math-emu/ | |
84 | ||
85 | # must be linked after kernel | |
86 | drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ | |
87 | ||
88 | boot := arch/$(ARCH)/boot | |
89 | ||
90 | all: image | |
91 | ||
92 | install: vmlinux | |
93 | $(Q)$(MAKE) $(build)=$(boot) $@ | |
94 | ||
95 | image: vmlinux | |
96 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ | |
97 | ||
98 | archclean: | |
99 | $(Q)$(MAKE) $(clean)=$(boot) | |
100 | ||
1da177e4 LT |
101 | # Don't use tabs in echo arguments |
102 | define archhelp | |
103 | echo '* image - Kernel image for IPL ($(boot)/image)' | |
104 | endef |